A used G620PU engine. The engine has electronic ignition (Rexel ignition unit). I purchased this secondhand off RC Trader a few years back to put on a FW190 but never fitted it. I tested the engine in my workshop and it works fine, pulls VERY hard. I have included the prop I purchased for the test in the sale as I have no other engine this large. The specs for the motor are on the Zenoah website (see below).
I also upgraded the carburettor linkage mechanism to tilt it 45 degrees to allow easier throttle cable connection (pretty standard upgrade for these engines).